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Finding the Fourth Proportional to 145,675.58, 218,540.93 and 56,923.47

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Solution

The fourth proportional to 145,675.58, 218,540.93 and 56,923.47 is: 85,395.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,675.58 : 218,540.93 = 56,923.47 : x
  2. Step 2: Convert to fraction form
    145,675.58/218,540.93 = 56,923.47/x
  3. Step 3: Cross multiply
    145,675.58x = 218,540.93 × 56,923.47
  4. Step 4: Simplify right side
    145,675.58x = 12,440,107,788.01
  5. Step 5: Solve for x
    x = 12,440,107,788.01/145,675.58
  6. Step 6: Final answer
    x = 85,395.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.